Effect of partitioning on wear-leveling

[Warner Losh]

> On Mar 21, 2016, at 9:34 PM, bob prohaska <fbsd at www.zefox.net> wrote:
> 
> On Mon, Mar 21, 2016 at 08:38:13PM -0600, Warner Losh wrote:
>> 
>> One thing that people forget is that the underlying blocks that are written
>> are completely independent of what lba is used to write it. So the notion
>> that you have blocks normally part of /var or /tmp no longer makes sense.
>> Between writing blocks in different order and garbage collection, modern SD
>> cards do a good job of wear averaging. How much you've written to the drive
>> in total drives wear out these days.
>> 
> 
> How do modern flash devices report end of life? Do problems show up in error
> logs, or does the device simply refuse to work with no warning?

Undefined. Either it goes read-only or read-never. :)

Warner

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